Net Loss Per Share

12 Months Ended

Dec. 31, 2017

(2) Net Loss Per Share

The Company calculates basic loss per share by dividing net loss by the weighted average common shares outstanding during the period. Diluted loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period increased to include, if dilutive, the number of additional common shares that would have been outstanding if the potential common shares had been issued. The Company’s potentially dilutive shares include stock options, restricted stock units and warrants for common stock.

Because the Company reported a net loss for the years ended December 31, 2017 and 2016, all potentially dilutive shares of common stock have been excluded from the computation of the dilutive net loss per share for all periods presented. Such potentially dilutive shares of common stock consist of the following:

	Years Ended December 31,
	2017		2016
Potentially dilutive securities, excluded:
Outstanding stock options		611,975		629,629
Unvested restricted stock units		15,168		30,739
Warrants to purchase common stock		3,633,008		3,686,894
		4,260,151		4,347,262